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Texas Instruments OPA837 | Demoboard TIDA-01055
ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems
Overview
| Topology | Other Topology |
| IC revision | E1 |
Description
The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over traditional op amps. Voltage reference sources with an integrated buffer often lack the drive strength required to achieve optimal performance in a high-channel count systems. This reference design is capable of driving several ADCs, and achieves a system ENOB of 15.77 bits using an 18-bit, 2-MSPS SAR ADC.
Features
Remark: Schematic and BOM PDF are added.
- Two-Stage Buffer Design for Reducing NoiseGenerated From Voltage Reference
- Implements New Low-Power Reference Driver WithSlew Rate Capability to Drive a 2-MSPS SAR ADC
Typical applications
- Data Acquisition(DAQ)
- Battery Test
- Lab Instrumentation, semiconductor test equipment, LCD test equipment
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins | PCB/Cable/Panel | Modularity | Type | Wire Section | λDom typ.(nm) | Emitting Color | λPeak typ.(nm) | IV typ.(mcd) | VF typ.(V) | Chip Technology | 2θ50% typ.(°) | C | Tol. C | VR(V (DC)) | Size | Operating Temperature | Q(%) | RISO | Ceramic Type | L(mm) | W(mm) | H(mm) | Fl(mm) | Packaging | L(µH) | IR(A) | ISAT(A) | fres(MHz) | Mount | Ti | Ø ID(mm) | Ø OD(mm) | Qty. | Working Voltage(V (AC)) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TPC SMT Tiny Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size2828 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length2.8 mm | Width2.8 mm | Height2.8 mm | – | – | Inductance6.8 µH | Rated Current1.1 A | Saturation Current1.3 A | Self Resonant Frequency59 MHz | MountSMT | – | – | – | Packaging Unit550 | – | ||||
 | WE-TPC SMT Tiny Power Inductor, 2, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TPC SMT Tiny Power Inductor | Pins2 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size3816 | Operating Temperature -40 °C up to +125 °C | – | – | – | Length3.8 mm | Width3.8 mm | Height1.65 mm | – | – | Inductance68 µH | Rated Current0.32 A | Saturation Current0.22 A | Self Resonant Frequency12 MHz | MountSMT | – | – | – | Packaging Unit1000 | – | ||||
 | WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular, 2, Rising Cage Clamp | Simulation– | Downloads6 files | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular | Pins2 | PCB/Cable/PanelPCB | ModularityYes | TypeHorizontal | Wire Section 26 to 16 (AWG) 0.5 to 1.5 (mm²) | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | Length10 mm | – | – | – | PackagingBox | – | Rated Current10 A | – | – | MountTHT | – | – | – | – | Working Voltage250 V (AC) | ||
 | WR-PHD Pin Header - Single, 2, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins2 | – | – | TypeStraight | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length5.08 mm | – | – | – | PackagingBag | – | Rated Current3 A | – | – | MountTHT | – | – | – | – | Working Voltage250 V (AC) | |||
 | WR-PHD Pin Header - Single, 3, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWR-PHD Pin Header - Single | Pins3 | – | – | TypeStraight | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | Insulation Resistance1000 MΩ | – | Length7.62 mm | – | – | – | PackagingBag | – | Rated Current3 A | – | – | MountTHT | – | – | – | – | Working Voltage250 V (AC) | |||
 | WL-SMCW SMT Mono-color Chip LED Waterclear, –, – | Downloads27 files RAY files
| Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWL-SMCW SMT Mono-color Chip LED Waterclear | – | – | – | – | – | Dominant Wavelength [typ.]625 nm | Emitting ColorRed | Peak Wavelength [typ.]630 nm | Luminous Intensity [typ.]250 mcd | Forward Voltage [typ.]2 V | Chip TechnologyAlInGaP | Viewing Angle Phi 0° [typ.]140 ° | – | – | – | Size0603 | Operating Temperature -40 °C up to +85 °C | – | – | – | Length1.6 mm | Width0.8 mm | Height0.7 mm | – | PackagingTape and Reel | – | – | – | – | MountSMT | – | – | – | Packaging Unit4000 | – | |||
| WCAP-CSGP MLCCs 50 V(DC), –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | – | – | – | – | – | – | Capacitance100 pF | Capacitance±5% | Rated Voltage50 V (DC) | Size0603 | Operating Temperature -55 °C up to +125 °C | Q-Factor1000 % | Insulation Resistance10 GΩ | Ceramic TypeNP0 Class I | Length1.6 mm | Width0.8 mm | Height0.8 mm | Pad Dimension0.4 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | Packaging Unit4000 | – | |||||
 | WA-SMSI SMT Steel Spacer with internal Thread M3, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWA-SMSI SMT Steel Spacer with internal Thread M3 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Operating Temperature -55 °C up to +150 °C | – | – | – | Length5 mm | – | – | – | PackagingTape and Reel | – | – | – | – | – | Inner ThreadM3 | Inner Diameter4.2 mm | Outer Diameter6 mm | Packaging Unit650 | – |